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As far as conceptually, I think we need to understand its function and how its molecular components have a role in playing in its biological function. And yes, I feel like Fe is always at the center of the heme complex because you can think of it like drawing lewis structures, the least electronegative atom (out of Fe and N) is always at the center of the molecule.
Fe is always at the center of the Heme Complex. The reason he talked about the heme complex is because it is a coordination complex. And all coordination complexes are made up of a transition metal as the central atom, which is then bonded to numerous ligands.
Could someone reiterate the significance of Fe as the central atom in the Heme complex, and how that relates to its function? Thank you!
According to professor Lavelle's lecture and his slides:
The Fe atom plays a role in binding one oxygen molecule, and therefore could perform the function of transporting oxygen in muscle cells. Whether oxygen is absorbed or de-absorbed depends on the local partial pressure of oxygen.
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